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명지실험한옥 온고재와 지신재의 온습도 측정 모니터링 비교연구
이원규(Wongyu Lee),박정아(Jeongah Park),김왕직(Wangjik Kim) (사)한국CDE학회 2015 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2015 No.하계
The purpose of this study was to compare the changes and differences in temperature and humidity of the Mock-Up Hanok Ongojae and Jisinjae in Myongji. Development of Modernized Hanok technology R&D has conducted a study in order to improve the disadvantages of the traditional Korean and a study to be used as a residential building. One of the outcomes is that a Myongji Mock-up Hanok was built in 2012 and and has the purpose of monitoring to apply improvements. The study is to compare the difference between the room temperature applying the improvements, byap "and the tradition of" John ". And it was used for ambient and indoor temperature and humidity data from December 2013 to February 2014.
Photo-Reduction of Graphene Oxide by Using Photographic Flash-Light
Chae, Wongyu,Kim, Minha,Kim, Donguk,Park, Jin-Hong,Choi, Wonseok,Lee, Jaehyeong American Scientific Publishers 2018 Science of advanced materials Vol.10 No.1
<P>In this work, we investigate the reduction of graphene oxide using a photographic flash-light. GO thin films were spray-coated to thicknesses of similar to 150, 200 and 300 nm on slide glass, and these films were reduced by photographic flash-light irradiation with 3000 Ws charged power at room temperature under ambient conditions. We studied the thickness effect of the GO thin films, which is an important parameters for the photo-thermal method. The 300-nm-thick GO thin film was fully reduced under flash-light irradiation, and thus its structure and chemical composition changed. The irradiated GO thin films were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, transmission electron microscopy, and scanning electron microscopy.</P>
Hybrid Temperature Sensor Network for Area-Efficient On-Chip Thermal Map Sensing
Seungwook Paek,Wongyu Shin,Jaeyoung Lee,Hyo-Eun Kim,Jun-Seok Park,Lee-Sup Kim IEEE 2015 IEEE journal of solid-state circuits Vol.50 No.2
<P>Spatial thermal distribution of a chip is an essential information for dynamic thermal management. To get a rich thermal map, the sensor area is required to be reduced radically. However, squeezing the sensor size is about to face its physical limitation. In this background, we propose an area-efficient thermal sensing technique: hybrid temperature sensor network. The proposed sensor architecture fully exploits the spatial low-pass filtering effect of thermal systems, which implies that most of the thermal information resides in very low spatial frequency region. Our on-chip sensor network consists of a small number of accurate thermal sensors and a large number of tiny relative thermal sensors, responsible for low and high spatial frequency thermal information respectively. By combining these sensor readouts, a thermal map upsampler synthesizes a higher spatial resolution thermal map with a proposed guided upsampling algorithm.</P>
한국과 싱가포르의 정보 교육과정의 핵심 개념과 영역 분석
박한별(HanByeol Park),김자미(JaMee Kim),이원규(WonGyu Lee) 한국컴퓨터교육학회 2021 한국컴퓨터교육학회 학술발표대회논문집 Vol.25 No.1(A)
싱가포르는 OECD가 주관한 국제 학생평가 프로그램(Programme for International Student Assessment, PISA)에서 항상 최상위권을 차지하는 국가이다. 싱가포르 교육체계를 살펴보는 것은 한국의 2022년 교육과정 개정을 위한 방향성 정립에 도움이 될 수 있을 것이다. 싱가포르는 중등교육과정에서 정보와 관련하여, 컴퓨터 응용(Computer Application), O-레벨 컴퓨팅(O-Level Computing)의 두 과목을 편성하였다. O-레벨 컴퓨팅은 US 칼리지 보드(College Board)와 미국 국립 과학 재단에서 발표한 컴퓨팅의 7가지 빅 아이디어(Big ideas in Computing)를 기반으로 개발했다는 특징이 있다. 학습 내용 체계를 구성함에 있어서, 하나의 빅 아이디어는 다양한 영역에 복잡하게 대응된다. 한국의 경우, 빅 아이디어와 유사 개념인 핵심 개념은 영역에 대응함에 있어서 매우 단조로운 형태를 보여준다. 또한, 영역은 핵심 개념을 포함하기에는 작은 범위의 내용으로 구성된 것으로 보인다. 핵심 개념이 기초 개념과 원리를 포함하는 근본적 차원의 개념임을 고려한다면, 각 영역은 핵심 개념들을 내포하여 교과성격을 잘 드러낼 수 있도록 구성되어야 할 것이다.